In the Amazonian expanse of the Guiana Shield — a region that includes Guyana, Suriname, French Guiana, and adjacent parts of Brazil, Venezuela, and Colombia — illegal gold mining has moved beyond a supporting illicit activity to become a parallel and increasingly resilient source of financing and territorial control for organized crime, operating alongside — and in some areas reinforcing — traditional drug trafficking economies. The scale and coordination of these networks came into sharper focus following a recent Interpol-supported cross-border operation, which highlighted the extent to which criminal groups operate simultaneously across jurisdictions rather than within isolated national spaces.
Regulatory loopholes, corruption, and uneven enforcement across borders have allowed criminal groups to consolidate their presence in remote territories where the state has only a limited foothold. In these fragile environments, illegal gold mining has become increasingly intertwined with transnational criminal networks that exploit weak enforcement, porous borders, and isolated communities. Interpol and other international bodies have repeatedly warned that illegal mining is closely linked to corruption, money laundering, and other serious crimes. These conditions are not only permissive — they are exploited strategically, allowing networks to shift operations across borders to evade pressure and maintain continuity.
Beyond the environmental devastation, the trade exacts a heavy human cost. Indigenous communities and small-scale miners are especially vulnerable, often facing precarious working conditions, mercury exposure, and little to no access to health controls. At the same time, armed groups and criminal organizations exert coercive control over mining zones, generating conditions associated with human trafficking, forced labor, and sexual exploitation. Research and advocacy groups focused on Indigenous rights and environmental crime have documented these patterns across the Amazon basin. These dynamics also create permissive environments for criminal governance, where non-state actors regulate access, labor, and movement in areas where state presence is limited or uneven.
In this context, Brazilian criminal structures remain especially influential. “Groups such as the Red Command [CV] and the First Capital Command [PCC] exercise supremacy in the region, operating not only in illegal mining but also in drug trafficking routes and other illicit markets,” Michelle Maffei, a professor of political science at the University of Guayaquil, told Diálogo.
Available data underscores the scale of the problem. International assessments estimate that illegal mining generates between $12 billion and $48 billion a year in criminal proceeds worldwide, with illegally mined gold among the sector’s most significant sources of revenue. Across the Amazon, thousands of illegal mining sites have been identified, while the activity continues to drive deforestation, contaminate rivers with mercury, degrade soils, and intensify violence in already vulnerable regions. This scale is significant not only in environmental terms, but because it represents a stable and diversified revenue stream that reduces criminal dependence on any single illicit market.
Mechanisms and transnational reach
The illegal gold chain does not end at the mine. Once extracted, the mineral can be blended into legal supply chains, passed through intermediaries, and moved into formal commercial circuits in ways that make its origin difficult to trace. That opacity creates opportunities for money laundering and helps criminal actors conceal profits behind otherwise legitimate trade flows. This makes enforcement particularly challenging, as interventions at extraction sites alone are insufficient without parallel action on financial flows, intermediaries, and export channels. International reporting and policy analysis have highlighted how weak traceability, poor due diligence, and fragmented oversight allow illegally sourced gold to enter illicit markets.
This dynamic is increasingly integrated with other illicit economies. Illegal mining and drug trafficking often share routes, infrastructure, corrupt facilitators, and protection networks. In Brazil’s Yanomami territory, for example, researchers and watchdog groups have documented the growing convergence between illegal gold mining and organized crime activity, including the expansion of PCC influence into the gold trade. This convergence allows criminal groups to leverage shared logistics, protection networks, and corruption channels, increasing efficiency while complicating enforcement efforts.
“In this environment, organized crime maintains a presence comparable to that in coastal areas, which demonstrates its expansion in the Amazon,” noted Maffei.
However, Maffei clarified that this activity has not displaced drug trafficking as the main source of income. “Drug trafficking continues to attract larger capital flows,” she said. Illegal mining, however, is becoming an increasingly important component of the broader criminal ecosystem, giving organized groups another lucrative stream of revenue and another avenue for territorial influence.
Along the border between Suriname and French Guiana, thousands of Brazilians have moved into remote areas in search of gold. Reports from investigative and regional media have described settlements shaped by informal economies, the circulation of drugs, limited state oversight, and acute social vulnerability — conditions that create permissive environments for criminal activity and complicate coordinated enforcement across borders.
Operation Guyana Shield
In January 2026, Operation Guyana Shield — carried out with Interpol support — brought together authorities from Brazil, French Guiana, Guyana, and Suriname, in a coordinated cross-border operation targeting illegal gold mining in the region. The operation resulted in 198 arrests and the seizure of machinery, gold, mercury, drugs, and cash. Conducted across multiple remote sites, it also helped authorities identify associated crimes, including human trafficking and labor exploitation. It marked a notable coordinated effort to simultaneously target extraction sites, logistics routes, and associated criminal activity across multiple jurisdictions.
The operation also demonstrated the operational value of synchronized enforcement in riverine and border areas. Interpol said officers carried out “mirror operations” on opposite banks of key frontier rivers, a model that underscores the operational value of simultaneous action across borders — demonstrating that coordinated pressure on both sides of frontier zones can limit displacement effects and reduce opportunities for evasion.
Although the operation produced significant results, its long-term impact will depend on sustained efforts aimed not only at miners on the ground but also at the financial flows, logistics networks, and corrupt facilitators that keep the trade alive. Without sustained coordination, criminal networks are likely to reconstitute operations or shift geographically, as seen in other illicit economies. Maffei stressed “the need to strengthen the traceability of financial flows through intelligence and technology, despite the banking system’s restrictions.”
The broader economic context is worsening the challenge. Interpol warned that the sustained rise in gold prices is fueling the spread of illegal mining and reinforcing its value as a source of criminal revenue. As long as the mineral remains highly profitable and traceability remains limited, illegal mining will continue to offer criminal networks a low-risk, high-return complement to other illicit activities.
Risks and regional outlook
“Initiatives to curb this scourge remain below the scale of the phenomenon,” said Maffei, pointing to a persistent gap between the scope of the problem and the capacity of current responses.
Without more effective territorial presence, the problem is likely to deepen, driven by new deposits, high prices, and the adaptability of criminal groups that can shift across borders in ways that challenge the speed and coordination of response efforts.
